PT2655732E - Processo para melhorar o branqueamento com dióxido de cloro da pasta de papel - Google Patents

Processo para melhorar o branqueamento com dióxido de cloro da pasta de papel Download PDF

Info

Publication number: PT2655732E
Authority: PT; Portugal
Prior art keywords: pulp; chlorine dioxide; dioxide bleaching; improving chlorine; improving
Prior art date: 2010-12-22

Application number

PT118023761T

Other languages

English (en)

Original Assignee

Akzo Nobel Chemicals Int Bv

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

2010-12-22

Filing date

2011-12-19

Publication date

2015-02-09

2011-12-19 Application filed by Akzo Nobel Chemicals Int Bv filed Critical Akzo Nobel Chemicals Int Bv

2015-02-09 Publication of PT2655732E publication Critical patent/PT2655732E/pt

Links

OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 title 2
239000004155 Chlorine dioxide Substances 0.000 title 1
238000004061 bleaching Methods 0.000 title 1
235000019398 chlorine dioxide Nutrition 0.000 title 1
238000000034 method Methods 0.000 title 1

Classifications

- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
- D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
- D21C9/144—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 and other bleaching agents in a multistage process
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
- D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
- D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
- D21C9/142—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 in a multistage process involving ClO2/Cl2 exclusively
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1026—Other features in bleaching processes
- D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes

Landscapes

Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Wood Science & Technology (AREA)
Paper (AREA)

PT118023761T 2010-12-22 2011-12-19 Processo para melhorar o branqueamento com dióxido de cloro da pasta de papel PT2655732E (pt)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US201061426179P	2010-12-22	2010-12-22

Publications (1)

Publication Number	Publication Date
PT2655732E true PT2655732E (pt)	2015-02-09

Family

ID=45420634

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
PT118023761T PT2655732E (pt)	2010-12-22	2011-12-19	Processo para melhorar o branqueamento com dióxido de cloro da pasta de papel

Country Status (7)

Country	Link
US (1)	US9057156B2 (pt)
EP (1)	EP2655732B1 (pt)
CA (1)	CA2821954C (pt)
CL (1)	CL2013001799A1 (pt)
PT (1)	PT2655732E (pt)
UY (1)	UY33838A (pt)
WO (1)	WO2012084842A1 (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
PT2655732E (pt) *	2010-12-22	2015-02-09	Akzo Nobel Chemicals Int Bv	Processo para melhorar o branqueamento com dióxido de cloro da pasta de papel

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3020197A (en) *	1960-08-05	1962-02-06	Allied Chem	Method for production of high brightness high strength wood pulps
USRE28884E (en)	1965-06-28	1976-06-29	Hooker Chemicals & Plastics Corporation	Woodpulp bleaching process
US3802958A (en) *	1968-11-07	1974-04-09	Mo Och Domsjoe Ab	Chlorination of cellulose pulp
USRE28887E (en)	1968-12-26	1976-06-29	Hooker Chemicals & Plastics Corporation	Sequential bleaching of kraft pulp with chlorine dioxide followed by chlorine
JPS5318602B2 (pt) *	1973-07-20	1978-06-16
US4013506A (en)	1974-07-22	1977-03-22	Canadian International Paper Company	Method and apparatus for automatically and simultaneously controlling solution viscosity and brightness of a pulp during multi-stage bleaching
US4238281A (en)	1979-04-30	1980-12-09	Canadian International Paper Company	Simplified bleaching process
US4657633A (en)	1985-05-24	1987-04-14	Westvaco Corporation	Delignification and bleaching of a cellulose pulp with an alkalioxygen-hypochlorite single stage sequential extraction
US4740212A (en)	1985-11-25	1988-04-26	Quantum Technologies, Inc.	Process and composition for bleaching cellulosic material with hypochlorous acid
EP0279845A4 (en)	1986-08-28	1991-01-09	James River-Norwalk, Inc.	Pulp bleaching process
DE3923728A1 (de) *	1989-07-18	1991-01-24	Degussa	Verfahren zur stabilisierung der viskositaet von zellstoffen
US5268075A (en) *	1989-10-19	1993-12-07	North Carolina State University	High efficiency two-step, high-low pH chlorine dioxide pulp bleaching process
WO1991005910A1 (en)	1989-10-19	1991-05-02	North Carolina State University	Chlorine dioxide pulp bleaching process using sequential chlorine addition
DE4129739A1 (de)	1990-09-11	1992-03-12	Sandoz Ag	Chlorfreies bleichen von papierpulpe
US5792316A (en) *	1992-02-28	1998-08-11	International Paper Company	Bleaching process for kraft pulp employing high consistency chlorinated pulp treated with gaseous chlorine and ozone
JP2000220088A (ja) *	1999-01-26	2000-08-08	Nippon Paper Industries Co Ltd	パルプの漂白方法
FI20000806L (fi) *	2000-04-05	2001-10-06	Aga Ab	Menetelmä lignoselluloosamassan valkaisemiseksi
US20050045291A1 (en) *	2002-08-08	2005-03-03	Martin Ragnar	Reduction of organically bound chlorine formed in chlorine dioxide bleaching
US8317975B2 (en)	2004-04-20	2012-11-27	The Research Foundation Of The State University Of New York	Product and processes from an integrated forest biorefinery
US20060006361A1 (en) *	2004-07-08	2006-01-12	Joseph Callerame	Clathrate of chlorine dioxide
EP3862485B1 (en)	2005-05-02	2024-02-28	International Paper Company	Ligno cellulosic materials and the products made therefrom
FI122237B (fi) *	2007-06-15	2011-10-31	Andritz Oy	Menetelmä nestevirtojen käsittelemiseksi sellutehtaalla
PT2655732E (pt) *	2010-12-22	2015-02-09	Akzo Nobel Chemicals Int Bv	Processo para melhorar o branqueamento com dióxido de cloro da pasta de papel

2011
- 2011-12-19 PT PT118023761T patent/PT2655732E/pt unknown
- 2011-12-19 EP EP11802376.1A patent/EP2655732B1/en not_active Not-in-force
- 2011-12-19 WO PCT/EP2011/073265 patent/WO2012084842A1/en not_active Ceased
- 2011-12-19 US US13/996,597 patent/US9057156B2/en not_active Expired - Fee Related
- 2011-12-19 CA CA2821954A patent/CA2821954C/en not_active Expired - Fee Related
- 2011-12-22 UY UY0001033838A patent/UY33838A/es unknown
2013
- 2013-06-19 CL CL2013001799A patent/CL2013001799A1/es unknown

Also Published As

Publication number	Publication date
CA2821954A1 (en)	2012-06-28
CA2821954C (en)	2019-02-26
UY33838A (es)	2012-06-29
EP2655732A1 (en)	2013-10-30
US20130269891A1 (en)	2013-10-17
WO2012084842A1 (en)	2012-06-28
EP2655732B1 (en)	2014-12-03
US9057156B2 (en)	2015-06-16
CL2013001799A1 (es)	2014-06-27

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PT2526047T (pt)	2017-11-17	Processo para a produção de dióxido de cloro
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PL2834407T3 (pl)	2017-08-31	Sposób bielenia masy celulozowej
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